<template>
  <div class="login-container">
    <div class="login-outer">
      <div class="login-img">
        <img src="" alt="">
      </div>
      <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
        <div class="m-position">
          <div class="title-container">
            <h5 class="title">用户登录 USER LOGIN</h5>
          </div>

          <el-form-item prop="username">
            <span class="svg-container">
              <svg-icon icon-class="user" />
            </span>
            <el-input
              ref="username"
              v-model="loginForm.username"
              placeholder="Username"
              name="username"
              type="text"
              tabindex="1"
              auto-complete="on"
            />
          </el-form-item>

          <el-form-item prop="password">
            <span class="svg-container">
              <svg-icon icon-class="password" />
            </span>
            <el-input
              :key="passwordType"
              ref="password"
              v-model="loginForm.password"
              :type="passwordType"
              placeholder="Password"
              name="password"
              tabindex="2"
              auto-complete="on"
              @keyup.enter.native="handleLogin"
            />
            <span class="show-pwd" @click="showPwd">
              <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
            </span>
          </el-form-item>

          <el-form-item prop="password">
            <span class="svg-container">
              <svg-icon icon-class="password" />
            </span>
            <el-input v-model="input2" placeholder="请输入内容" />
            <span class="testNumber">
              <identifyingCode />
            </span>
          </el-form-item>
          <p class="psw-t"><el-checkbox v-model="checked">记住密码</el-checkbox><span class="forgetPsw">忘记密码?</span></p>
          <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">Login</el-button>
        </div>
      </el-form>
    </div>
  </div>
</template>

<script>
import { validUsername } from '@/utils/validate'
import identifyingCode from '@/components/identifyingCode'

export default {
  name: 'Login',
  components: { identifyingCode },
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error('Please enter the correct user name'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('The password can not be less than 6 digits'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        username: 'admin',
        password: '111111',
        checked: true
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || '/' })
            this.loading = false
          }).catch(() => {
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:black;
$cursor:black;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .login-outer{
    width: 550px;
    height: 400px;
    margin: auto;
  }
  .login-img{
    width: 100%;
    height: 100%;
  }
  .el-input {
    display: inline-block;
    height: 30px;
    width: 80%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 30px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    color: #454545;
    width: 300px;
    line-height: 25px;
  }
}
.forgetPsw{
  float: right;
  font-size: 14px;
  color:  #409EFF;
}
</style>

<style lang="scss" scoped>
$bg:rgba(236, 245, 255, 1);
$dark_gray:#889aa4;
$light_gray:#666666;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: absolute;
    top: 0px;
    width: 350px;
    height:400px;
    max-width: 100%;
    margin-left: 200px;
    overflow: hidden;
    background-color:rgba(255, 255, 255, 1);
  }

  .tips {
    font-size: 14px;
    color:black;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 14px;
      color: $light_gray;
      margin-left: -154px;
      margin-bottom: 39px;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
.testNumber{
    position: absolute;
    display: inline-block;
    width: 70px;
    right: 10px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
    line-height: 40px;
}
.m-position{
  margin: auto;
  width: 300px;
}
::v-deep .el-form-item__content{
  line-height: 28px;
}
</style>
